32 lines
1.0 KiB
Java
32 lines
1.0 KiB
Java
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import com.sun.xml.internal.ws.org.objectweb.asm.*;
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class Asmator {
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static byte[] fixup(byte[] buf) throws java.io.IOException {
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ClassReader cr = new ClassReader(buf);
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ClassWriter cw = new ClassWriter(0) {
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public MethodVisitor visitMethod(
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final int access,
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final String name,
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final String desc,
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final String signature,
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final String[] exceptions)
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{
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MethodVisitor mv = super.visitMethod(access,
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name,
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desc,
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signature,
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exceptions);
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if (mv == null) return null;
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if (name.equals("callme")) {
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// make receiver go dead!
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mv.visitInsn(Opcodes.ACONST_NULL);
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mv.visitVarInsn(Opcodes.ASTORE, 0);
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}
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return mv;
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}
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};
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cr.accept(cw, 0);
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return cw.toByteArray();
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}
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}
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